<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title></title>
   <script src="../js/vue.js"></script>
  
</head>
<body>
   <div id="app">
   <input type="text" v-on:keyup.enter="submitBtn">

   </div>
 
   </div>
</body>
  <script>
      var vm = new Vue({
          el:"#app",
          data:{
         
          },
          methods:{
          submitBtn(){
            console.log('点击表单');
           }
          }
        })
  </script>
</html>